Hydrochloric Acid → HCID 53375344, compound

Participants

Reaction Steps

To a solution of allyl (4R,5S,6S)-3-[(4-{(5S)-1-[(allyloxy)carbonyl]-5-methyl-2,5-dihydro-1H-pyrrol-3-yl}-1,3-thiazol-2-yl)sulfanyl]-4-methyl-7-oxo-6-{(1R)-1-[(trimethylsilyl)oxy]ethyl}-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate (85 mg, 0.14 mmol) in THF (6 ml) was added at 0° C. water and then the solution was adjusted to pH about 3 with 1N hydrochloric acid and stirred for 10 minutes. To the reaction solution was added an aqueous sodium hydrogen carbonate solution and the reaction mixture was extracted twice with ethyl acetate. The organic layer was washed with a saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate. After removal of the solvent in vacuo, the residue was purified with silica gel chromatography (hexane/ethyl acetate=1/2) to give allyl (4R,5S,6S)-3-[(4-{(5S)-1-[(allyloxy)carbonyl]-5-methyl-2,5-dihydro-1H-pyrrol-3-yl}-1,3-thiazol-2-yl)sulfanyl]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate (60 mg, 80%) as a pale yellowish amorphous.

Provenance & Evidence